Based on AMD's 28nm GCN architecture Cape Verde XT GPU, the new PCS+ HD 7770 features 10 GCN Computing Units for a total of 640 stream processors and is factory overclocked to 1150MHz for the GPU and 1250MHz (5GHz effective) for 1GB of GDDR5 memory paired up with a 128-bit memory interface. Just for comparison, the reference card is clocked at 1000/4500MHz.

The new PCS+ HD 7770 is cooled by "solid cooling design" that uses heatpipe direct touch technology. The cooler takes up two slots and has a center placed fan with automatic fan speed control.

As expected, the card feature one DVI, HDMI and two mini-DisplayPort outputs. Unfortunately, the price or the actual availability date haven't been announced.

3DCenter.org site has come up with a full specification list for the upcoming AMD Radeon HD 7700 series graphics cards based on the 28nm Cape Verde GPU.

The Cape Verde GPU itself is based on 28nm GCN architecture and features 10 Compute Units clusters with 64 shader units and four texture units per cluster for a total of 640 Stream Processors and 40 TMUs as well as 16 ROPs. The GPU will be tied with 1GB of GDDR5 memory paired up with a 128-bit memory interface.

According to the post, the Radeon HD 7770 should pack a fully enabled Cape Verde GPU so it has 10 CUs and 640 Stream Processors and is set to work at 1000MHz for the GPU and 1125MHz (4.5GHz effective) for the memory. The TDP should be somewhere around 80W, which means that HD 7770 will end up with a single PCI-Express power connector after all.

The Radeon HD 7750, based on the Cape Verde Pro GPU will lack two CUs, so it will end up with 8 CUs enabled for a total of 512 Stream Processors. The rumoured clocks are set at 800MHz for the GPU and the same 1125MHz (4.5GHz effective) for the same 1GB of GDDR5 memory paired up with the same 128-bit memory interface. The TDP for the HD 7750 is set at around 55W so it should be quite happy with the 75W provided by the PCI-Express slot.

These specs are pretty much on par with what we have been hearing around and the expected performance, according to the 3DCenter.org post, should be somewhere around the HD 6850 for the HD 7770 and somewhere around HD 6770 for the Radeon HD 7750. The price for the HD 7770 is rumoured at around €115 while the price for the HD 7750 is set at around €90 to €100.

Cape Verde is still scheduled to launch on February 15th as far as we know and we are sure that there will be a leak or two in the upcoming five days. You can check out the original post here.

If you can hold your breath until February, it looks like AMD will introduce the smallest 28nm graphics chip at a very affordable price.

The Radeon HD 7770 is based on the Cape Verde XT chip and it should end up clocked at 900MHz. It has 896 stream processors as well as 56 texture units and 16 ROPs. The memory is clocked at 1375MHz (5.5GHz GDDR5 effective).

Since the card is trimmed to a 128-bit memory interface, its memory bandwidth is 88GB/s and it comes with 1GB memory. It should start selling at some point in February for $149.

The runner up is HD 7750 based on Cape Verde PRO, works at 900MHz has 832shaders, 52 TMUs and 16 ROPs. The memory works at 5.0GHz bringing the total possible bandwidth to 80 GB/s for its 1GB of memory. This one will sell for $10 less, or $139.

Of course, for more demanding users Pitcairn cards will be the preferred choice. The HD 7870 and HD 7850 feature a 256-bit memory bus, along with more shaders and higher clocks. They will sell for $299 and $249 respectively.

There are more details to follow, but we know that Pitcairn should also come in February and that the chip measures 245 square millimeters.

In addition to all the rumours and leaks regarding the Tahiti HD 7970/7950 GPU, the first picture of the Cape Verde XT equipped Radeon HD 7770 graphics card has leaked online.

As it was noted before, Cape Verde GPU is AMD's, one might say long due, replacement of Juniper GPU, the same one that was behind both the HD 5770 and the HD 6770 cards. The design of the HD 7770 looks pretty much what you would expect from a mid-range card, a single center placed fan, dual-slot desing and a cleaner PCB with single 6-pin PCI-Express power connector. By the looks of it, the card should end up to be as long as the HD 6770.

The GPU itself is quite small and should end up at somewhere under 150mm2. The card has four memory chips, so a 128-bit memory interface is practically confirmed. The reference design ended up with DVI, HDMI and mini DisplayPort outputs and due to single PCI-Express 6-pin power connector, the TDP should end up below 150W, most likely somewhere around 100W.

The Cape Verde will be the lowest performing GPU based on the GCN architecture while the rest of the lineup below it should end up to be rebrand of the VLIW5 HD 6000 series with few minor tweaks. According to our sources, Radeon HD 7700 series is still scheduled to appear after Chinese New Year, or mid February.